[trunk r.3616] Deleting text in frame also deletes frame

Setup: MuseScore SVN rev. 3616, Ubuntu 10.04, Qt SDK 10.02 (Qt lib 4.6.2)

Steps:
1) Open any score, for instance the demo score "pictures.mscx"
2) Select the title ("Bilder eines Austellung / Promenade")
3) Delete the title (pressing [Del])

Result: The whole title frame is deleted.

Expected result: Only the title is deleted, while the frame and the other frame text (composer) are kept.

Note: The same happens if the composer text is deleted.

Incidentally: The composer text is obviously misplaced...

Thanks,

M.